| 摘要 |
<p>The invention relates generally to an electronic device for controlling the voltage supplied to a load, and in particular to a device having a transfer function of the first order. The technical problem to be solved concerned the provision of a device which, while retaining a characteristic of the first order, would enable control of the controlled signal frequency. The solution to the problem resides in providing a closed loop frequency control stage (9-11) operating in constant average current conditions and comprising a phase comparator (9), means operative to evaluate the sign of a hysteresis comparator (4 min ) output voltage, and an adder (11).</p> |
